跨声速风洞调节片式二喉道中心体构型初步研究

doi:10.7527/S1000-6893.2017.121327

流体力学与飞行力学

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跨声速风洞调节片式二喉道中心体构型初步研究

崔晓春^1,2, 孟凡民², 李庆利², 张刃², 李兴龙²

1. 北京航空航天大学航空科学与工程学院, 北京 100083;
2. 中国航空工业空气动力研究院高速高雷诺数气动力航空科技重点实验室, 沈阳 110034

收稿日期:2017-04-17 修回日期:2017-08-02 出版日期:2017-11-15 发布日期:2017-10-27
通讯作者: 孟凡民 E-mail:moonnuaa@126.com

Preliminary research on center body of adjusting plate second throat in transonic wind tunnel

CUI Xiaochun^1,2, MENG Fanmin², LI Qingli², ZHANG Ren², LI Xinglong²

1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100083, China;
2. Aero Science Key Laboratory of High Reynolds Aerodynamic Force at High Speed, AVIC China Aerodynamics Research Institute, Shenyang 110034, China

Received:2017-04-17 Revised:2017-08-02 Online:2017-11-15 Published:2017-10-27

摘要/Abstract

摘要：

新一代先进飞行器的发展，对风洞试验数据的稳定性和精细化水平提出了更高的要求。而二喉道，作为马赫数精确控制系统，可降低试验流场马赫数波动量，提高试验数据稳定性。二喉道从结构构型上可分为调节片式、活动堵块式和栅指式。本文针对调节片加中心体式二喉道，研究不同中心体构型对二喉道性能的影响。首先，利用数值模拟手段定性研究不同中心体构型的二喉道的气动性能；其次，通过风洞试验，设计加工了4种构型的二喉道进行验证试验。数值模拟和试验验证表明：加长板中心体在总压损失和流场控制方面综合性能最好，并在新建的大型连续式风洞中采用了加长板中心体方案。

关键词: 二喉道, 中心体, 跨声速风洞, 数值模拟, 试验验证

Abstract:

To meet the demand of the development of a new generation of aircraft projects, we need to improve the simulation precision of wind tunnel tests. The second throat, as the precision control system for the Mach number, can reduce the Mach number fluctuation and improve the stability of the test data. At present, from the perspective of structural configurations, the second throat can be divided into activity plugging block type, the choke finger and the adjusting plate type. In this paper, we study the adjusting plate second throat with the center body, and the effect of different types of the center body on the performance of the second throat. First, we analyze the aerodynamic performance of the second throat with different center body using numerical simulation method. Second,we design and process four types of the second throat for validation test in the pilot wind tunnel. The numerical simulation and test results show that the second throat with the extended board center body can perform the best in terms of the total pressure loss and flow control, and this program is adopted in the newly built large continuous wind tunnel.

Key words: second throat, center body, transonic wind tunnel, CFD simulation, test verification

中图分类号:

V211.754

崔晓春, 孟凡民, 李庆利, 张刃, 李兴龙. 跨声速风洞调节片式二喉道中心体构型初步研究[J]. 航空学报, 2017, 38(11): 121327-121327.

CUI Xiaochun, MENG Fanmin, LI Qingli, ZHANG Ren, LI Xinglong. Preliminary research on center body of adjusting plate second throat in transonic wind tunnel[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(11): 121327-121327.

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E-mail：hkxb@buaa.edu.cn

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跨声速风洞调节片式二喉道中心体构型初步研究

Preliminary research on center body of adjusting plate second throat in transonic wind tunnel

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